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10 Cards in this Set

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as u go down a group, atomic size...
increases
shielding effect?
decrease in size from left to right is less pronounced from pds towards the bottom
periodic trend
as u move across pd. size of cations: decreases, size of anions: decrease
as you down a group, ionization energy...
decreases
cation
+ ions (lost electrons)
always smaller than neutral atom from which thye r made; more protons than electrons
as you go across a pd, ionization energy...
increases
ionization energy
amount of energy required to move the most loosely held electron
anion
(- ion) gained electrons
always larger then neutral original atom; more electrons than protons
group trend
as u go down a group, size increases
(greater # occupied energy levels)
as you move from left to right acros a pd, atomic size...
decreases